** Changed in: linux-oem (Ubuntu Bionic)
       Status: New => Fix Committed

** Tags added: originate-from-1850265

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-oem in Ubuntu.

  Can't adjust brightness on DELL UHD dGPU AIO

Status in HWE Next:
Status in OEM Priority Project:
Status in linux package in Ubuntu:
Status in linux-oem package in Ubuntu:
Status in linux-oem-osp1 package in Ubuntu:
Status in linux source package in Bionic:
Status in linux-oem source package in Bionic:
  Fix Committed
Status in linux-oem-osp1 source package in Bionic:
Status in linux source package in Disco:
  In Progress
Status in linux source package in Eoan:

Bug description:
  The dell-uart-backlight driver has been loaded, but the backlight is 
controller by graphics driver instead of scalar IC. The old way to determinate 
weather the driver should be loaded is not working anymore, since the behavior 
of scalar command, show firmware version, is not the same as old platforms.

  Using more a reliable command, get_scalar_status, to check if scalar is in 
charge of the AIO backlight.
  For the old platforms which don't have the new command, I add a list to list 
them all and use the old way to determinate the scalar IC. 

  Verified on old and new Dell AIO platforms.

  [Regression Potential]
  Low. The quirk lists all old platforms which use the old way to check if 
scalar IC is in use. So, it won't change the behavior on old platforms, and 
apply the new method on new platforms.

To manage notifications about this bug go to:

Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to